Abstract
The dependence of the distribution coefficients of Ce and Y in their extraction by solutions of D2EGPA in n-heptane from hydrochloric acid salt solutions, containing the ions Na+, K+, Mg++, and Ca++, was studied. It was established that: a) the influence of impurities upon the distribution coefficient of cerium grows weaker in the order Ca>Mg>K>Na; Ca and Mg also influence the distribution coefficient of yttrium: increasing acidity lowers the selectivity of this influence; b) increasing the acidity of the aqueous phase leads to a weakening of the influence of impurity ions; c) increasing the concentration of the impurity in the aqueous phase weakens the influence of the D2EGPA concentration in the organic phase upon the values of the distribution coefficients.
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